// src/assets/styles/hairline.scss

@mixin scale-hairline-common($color, $top, $right, $bottom, $left) {
    content: '';
    position: absolute;
    display: block;
    z-index: 1;
    top: $top;
    right: $right;
    bottom: $bottom;
    left: $left;
    background-color: $color;
  }
  
  // 添加边框
  /* 
    用法：
  
    // 导入
    @import '@scss/hairline.scss';
  
    // 在类中使用
    .a {
        position: relative;
      @include hairline(bottom, #f0f0f0);
    }
  */
  @mixin hairline($direction, $color: #000, $radius: 0) {
    @if $direction == top {
      border-top: 1px solid $color;
  
      // min-resolution 用来检测设备的最小像素密度
      @media (min-resolution: 2dppx), (-webkit-min-device-pixel-ratio: 2) {
        border-top: none;
  
        &::before {
          @include scale-hairline-common($color, 0, auto, auto, 0);
          width: 100%;
          height: 1px;
          transform-origin: 50% 50%;
          transform: scaleY(0.5);
  
          @media (min-resolution: 3dppx), (-webkit-min-device-pixel-ratio: 3) {
            transform: scaleY(0.33);
          }
        }
      }
    } @else if $direction == right {
      border-right: 1px solid $color;
  
      @media (min-resolution: 2dppx), (-webkit-min-device-pixel-ratio: 2) {
        border-right: none;
  
        &::after {
          @include scale-hairline-common($color, 0, 0, auto, auto);
          width: 1px;
          height: 100%;
          background: $color;
          transform-origin: 100% 50%;
          transform: scaleX(0.5);
  
          @media (min-resolution: 3dppx), (-webkit-min-device-pixel-ratio: 3) {
            transform: scaleX(0.33);
          }
        }
      }
    } @else if $direction == bottom {
      border-bottom: 1px solid $color;
  
      @media (min-resolution: 2dppx), (-webkit-min-device-pixel-ratio: 2) {
        border-bottom: none;
  
        &::after {
          @include scale-hairline-common($color, auto, auto, 0, 0);
          width: 100%;
          height: 1px;
          transform-origin: 50% 100%;
          transform: scaleY(0.5);
  
          @media (min-resolution: 3dppx), (-webkit-min-device-pixel-ratio: 3) {
            transform: scaleY(0.33);
          }
        }
      }
    } @else if $direction == left {
      border-left: 1px solid $color;
  
      @media (min-resolution: 2dppx), (-webkit-min-device-pixel-ratio: 2) {
        border-left: none;
  
        &::before {
          @include scale-hairline-common($color, 0, auto, auto, 0);
          width: 1px;
          height: 100%;
          transform-origin: 100% 50%;
          transform: scaleX(0.5);
  
          @media (min-resolution: 3dppx), (-webkit-min-device-pixel-ratio: 3) {
            transform: scaleX(0.33);
          }
        }
      }
    } @else if $direction == all {
      border: 1px solid $color;
      border-radius: $radius;
  
      @media (min-resolution: 2dppx), (-webkit-min-device-pixel-ratio: 2) {
        position: relative;
        border: none;
  
        &::before {
          content: '';
          position: absolute;
          left: 0;
          top: 0;
          width: 200%;
          height: 200%;
          border: 1px solid $color;
          border-radius: $radius * 2;
          transform-origin: 0 0;
          transform: scale(0.5);
          box-sizing: border-box;
          pointer-events: none;
        }
      }
    }
  }
  
  // 移除边框
  @mixin hairline-remove($position: all) {
    @if $position == left {
      border-left: 0;
      &::before {
        display: none !important;
      }
    } @else if $position == right {
      border-right: 0;
      &::after {
        display: none !important;
      }
    } @else if $position == top {
      border-top: 0;
      &::before {
        display: none !important;
      }
    } @else if $position == bottom {
      border-bottom: 0;
      &::after {
        display: none !important;
      }
    } @else if $position == all {
      border: 0;
      &::before {
        display: none !important;
      }
      &::after {
        display: none !important;
      }
    }
  }
  